Tethya citrina, Polymastia boletiformis. Site: Legnaboe, Ardglass
 Tethya citrina, Polymastia boletiformis. Event number: 19820907/02. Site: Legnaboe, Ardglass. 1982-09-07. Photograph © Bernard Picton. (5/18) 
 Bernard Picton (2026). Photograph of Tethya citrina, Polymastia boletiformis. Site: Legnaboe, Ardglass. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_0817.jpg. Accessed on 2026-11-04